We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

1. On the keyboard, press [Windows] The image "Windows key" does not exist. + [R]. This should bring up a Run window that contains a text field.
2. In that text field, type %APPDATA% and press Enter. An explorer window should open.
3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
4. Now, you should see a list of files that contain reports. Go to View > Arrange Icons by > Modified to get the most recent files at the top of the window.
5. Open the most recent 5 files with a text editor and copy the IDs.
6. Paste each ID with bp- into the reply window on the forums.

Thanks in advance!

You can find more information and troubleshooting steps in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

Crash ID: bp-232176a8-d86c-4fb9-8eb4-91ba82161219

I can't open the browser. Crash ID: bp-232176a8-d86c-4fb9-8eb4-91ba82161219

Hi

Thank you for providing that information - really helpful.

I have had a look into this and I believe that your device has become infected with malicious software. I strongly recommend that you immediately update and run anti malware software on your device as well as make sure that your copy of Windows is up to date.

It would be handy to know the anti malware software you used so that we can recommend it to others with a similar issue.

In addition, I recommend that you go to the Windows Control Panel, select Programs and remove all toolbars or potentially unwanted software from there (especially anything dubbed "adskip" or other programs you haven't installed intentionally). Then please also try running security scans with various other tools like the free version of Malwarebytes, adwcleaner and ESET's free online scanner.

Confirmed: chtbrkg.dll = Internet Download Manager integration = Adware